Thanks for confirming. I’d amp up your social media activity, include more videos and set it up as an event on social media which people can then share /invite people too. If you haven’t already, I’d talk tot the venue and see what they can do to push it out through their channels e.g. website, social media, email, cards on tables, announcements on other gig nights. Is there anything you can do with local media? Interviews? Competitions? “Bringing” and just one t on buffet.
Let us know how you get on. If you’re trying to establish this in a new area you’re probably doing many of the right things, it’s just going to take time unfortunately but keep going!! Good luck!